Primary case oil

Harley Formula+ Oil for Smooth Shifts

Keep your Harley Davidson’s primary drive system running smoothly with the right primary gearbox oil. Our Harley Davidson selection features Formula + transmission, helping to support clutch performance and reduce wear on key components. Find your bike's best match and order today!

    Primary case oil  - Maintenance
    2 products
    SAE 80W-140 Synthetic Heavy Transmission Oil - OEM 62600093
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    Formula+ Transmission and Primary Case Lubricant - OEM 62600019
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